Beveiliging via Laser

[Frank_van_de_Schuur]

zie ook hier:

IR gate solution for Homey

Hi all, I want to detect motion on a staircase with a strange ‘corner’. Because of the weird shape of the staircase only a motiondetector is not enough. It cannot ‘see’ the lower part of the staircase. Offcourse i can use a second PIR but i think that will be triggered too much because of movement on the lower floor. So i was thinking of using a “IR gate” solution where the IR beam will be interrupted when somebody starts to clime te stairs. (An IR transmitter with a reflector on the other …